And me without mod points.
And me without mod points.
I too had an original IBM PC (Model 5051) running in 1992. I wrote the code on it in the 1985 or so timeframe. It didn't do anything fancy, but did talk to a special board (a particular IEEE-488 card from CEC). It worked. It worked EVERY day. It did what it was supposed to do. We had a 386 doing the same exact thing one desk over, but why change it? The literally 10+ lbs of paperwork to make the change (did I mention it was doing stuff for the
Probably needs a 20ma current loop to drive the ASR-33 Teletype.
Of course there are us hams. Channels 7-12 actually belong to US, and if they start messing with those channels, the local ham can tell THEM to turn off the WiFi...
That whole part 97 and part 15 deal. Licensed users get priority over unlicensed
Yes, totally. That's why the box changed the world. Break bulk, even on pallets was a bear to unload, and a ship would be in port a LONG time, and the ships were relatively small. Today, the 10000 TEU sip I quoted at 100 tons fuel/day is actually small. You are seeing ships up at 18000 TEU and 125 tons/day. These ship are the reason the Panama canal is being rebuilt, NY Harbor has been dredged deeper, the Bayone bridge in NJ is being raised (to get to the slips in NJ)
One of the real ISSUES they don't bring up, with the trade imbalance, many more containers come INTO the US than go out. What do you do with the empties? In general, what happens is the best are reused to ship stuff out, Some are sold (there are a reason you see the ads for buying containers) and the rest? Cut up for scrap, and shipped back to China as scrap steel!
BTW - this is the place I had applied and didn't get the gig back, oh 3-4 years ago - read about the automation
The container revolution is the next step in the pallet revolution. A friend of mine Master's paper is on the pallet. Interesting topic (single use vs reusable vs pool pallets - the 'Blue' painted ones you see are rented
Go on the shipping lines web sites and get the quotes on times and cost (automated tools) about $1200 to move one container from China to the US, with $950 of it is the Ocean rate, and a time estimate of 15 days.
18 Knots = 20MPH
I looked at
I believe it was
Changzhou, China to
which is a distance of 5900 miles - or 12.3 days at 18 knots
BTW - did you do the math on shipping the shirts? less than 4 cents each (about 3.6 cents)
Actually, an amazing number of containers go from the west coast to east coast by rail, the issue is there STILL isn't enough rail. UPS and JB Hunt gather stuff up and ship it to NJ on unit stacks
In fact, there are a surprising number of contains (due to changes in Customs) that go from China to Europe vis the following:
China to US west coast by ship (be it Oakland, SeaTac etc) and put right on waiting trains, which then run non stop to the US east coast, where they are offloaded from the train, right back onto a ship, and off to Europe.
I interviewed at a place that was deeply involved in this. As I follow the shipping industry (both a railfan and ship fan) it was a gig I wish I had gotten - sigh. Anyway, they are to the point they are totally automating the cranes, and the Rail Mounted Gantries (RMG) and Rubber Tired Gantries (RTGs) in the port, with humans JUST acting as safety overrides. They want to cut the turn around on the ships from like 72 to 36 hours if I remember the numbers right. Incredibly efficient operations, and as big a deal as the invention of the cargo pallet was during WWII (Yep - think about moving stuff around without a pallet )
Oh yeah, flown goods, totally different, but as the article is on shipping containers..
You missed - that 3.75 gallons was to move all 34000 tee shirts, so the fuel useage was 3.75/34000 - or spread it with a shovel, slice it with an axe, 1/1000th of a gallon of gas...
Of course the local traffic issue happens no matter if the shirt is made in the USA, or anywhere else. Want to drive from the NJ Terminals to Say Long Island (shudder - NJ Turnpike, GWB and the Cross Bronx..)
(NYC effectively has no rail service - you CAN get to Queens by shipping up north to Albany, and then down - doesn't happen) or to Staten Island...
BTW, when you work it out to 34000 teeshirts/container, that total use of fuel is
Correct. People don't realize how fuel EFFICIENT shipping really is. At "Slow" speeds (18 knots) where more than 1/2 the worlds cargo ships run, and figuring a 9000-10000 TEU ship (aka holds 9000-10000 20 ft containers, 1/2 that if all 40Ft boxes) - the ship will typically burn 100 Tons of fuel/day - or 1/100th of a ton of fuel per container/day, and roughly (because bunker C - the 'crap they burn' - Now there are roughly depending on exact fuel 250-280 gallons/ton of fuel - so it takes about 1/4 gallon of fuel per DAY to move each one of those containers. But the joke? Go to the online shipping calculators - China to west coast USA (where it will get put on a train) - 15 days, NOT 15. So you are talking roughly 3.75 gallons of fuel to move that container of tee-shirts from China to the US - that's the container, all the goods etc.
Work the math. You probably burn more fuel per shirt driving to the store, picking up the shirt, and driving home than shipping it from China takes. Remember - ships float, and take surprisingly little fuel per ton to move freight. It is why canals were such a big deal back when - a full barge of coal or gravel or whatever could be moved by ONE horse.
Me thinks you need to broaden your horizon a bit. Forest Mimms started a lot of people along the path with his very simple books.
How about Horowitz and Hill - I'm QUITE sure you've heard of him. How about Schottky?
Do the name Armstrong (Not Neal) mean anything?
Unfortunately, there's something to that. Over the last 35 years I've done just about every job there is in software development, and the vast majority of it more strongly resembles a skilled trade than a scientific pursuit. Since I have no desire to be a researcher or a manager, I prefer it that way.
Chalkboard-based computer science that starts with phrases like "let sigma represent..." has been a very small part of the work I and my peers have done, usually around conversations about it deadlocking, running in quadratic time, and whatnot. We build things, and we use a pretty well-defined set of skills to do that, skills that do not have to be taught as part of a baccalaureate degree. (OTOH, things like political science and psychology, which you wouldn't get in a trade school, have direct application to working in large organizations.)
I married a chemist, and our best friends are a mathematician and a biologist with PhDs. I am NO scientist.
If you're not careful, you're going to catch something.